CVE-2025-23133 (GCVE-0-2025-23133)

Vulnerability from cvelistv5 – Published: 2025-04-16 14:13 – Updated: 2025-09-09 17:05
VLAI?
Title
wifi: ath11k: update channel list in reg notifier instead reg worker
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: update channel list in reg notifier instead reg worker Currently when ath11k gets a new channel list, it will be processed according to the following steps: 1. update new channel list to cfg80211 and queue reg_work. 2. cfg80211 handles new channel list during reg_work. 3. update cfg80211's handled channel list to firmware by ath11k_reg_update_chan_list(). But ath11k will immediately execute step 3 after reg_work is just queued. Since step 2 is asynchronous, cfg80211 may not have completed handling the new channel list, which may leading to an out-of-bounds write error: BUG: KASAN: slab-out-of-bounds in ath11k_reg_update_chan_list Call Trace: ath11k_reg_update_chan_list+0xbfe/0xfe0 [ath11k] kfree+0x109/0x3a0 ath11k_regd_update+0x1cf/0x350 [ath11k] ath11k_regd_update_work+0x14/0x20 [ath11k] process_one_work+0xe35/0x14c0 Should ensure step 2 is completely done before executing step 3. Thus Wen raised patch[1]. When flag NL80211_REGDOM_SET_BY_DRIVER is set, cfg80211 will notify ath11k after step 2 is done. So enable the flag NL80211_REGDOM_SET_BY_DRIVER then cfg80211 will notify ath11k after step 2 is done. At this time, there will be no KASAN bug during the execution of the step 3. [1] https://patchwork.kernel.org/project/linux-wireless/patch/20230201065313.27203-1-quic_wgong@quicinc.com/ Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: f45cb6b29cd36514e13f7519770873d8c0457008 , < 26618c039b78a76c373d4e02c5fbd52e3a73aead (git)
Affected: f45cb6b29cd36514e13f7519770873d8c0457008 , < f952fb83c9c6f908d27500764c4aee1df04b9d3f (git)
Affected: f45cb6b29cd36514e13f7519770873d8c0457008 , < 933ab187e679e6fbdeea1835ae39efcc59c022d2 (git)
Affected: f96fd36936310cefe0ea1370a9ae30e6746e6f62 (git)
Affected: c97b120950b49d76bdce013bd4d9577d769465f4 (git)
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    Linux Linux Affected: 6.1
Unaffected: 0 , < 6.1 (semver)
Unaffected: 6.12.46 , ≤ 6.12.* (semver)
Unaffected: 6.14.2 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
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{
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ath/ath11k/reg.c"
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          "programFiles": [
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          "vendor": "Linux",
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              "cpeMatch": [
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              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: update channel list in reg notifier instead reg worker\n\nCurrently when ath11k gets a new channel list, it will be processed\naccording to the following steps:\n1. update new channel list to cfg80211 and queue reg_work.\n2. cfg80211 handles new channel list during reg_work.\n3. update cfg80211\u0027s handled channel list to firmware by\nath11k_reg_update_chan_list().\n\nBut ath11k will immediately execute step 3 after reg_work is just\nqueued. Since step 2 is asynchronous, cfg80211 may not have completed\nhandling the new channel list, which may leading to an out-of-bounds\nwrite error:\nBUG: KASAN: slab-out-of-bounds in ath11k_reg_update_chan_list\nCall Trace:\n    ath11k_reg_update_chan_list+0xbfe/0xfe0 [ath11k]\n    kfree+0x109/0x3a0\n    ath11k_regd_update+0x1cf/0x350 [ath11k]\n    ath11k_regd_update_work+0x14/0x20 [ath11k]\n    process_one_work+0xe35/0x14c0\n\nShould ensure step 2 is completely done before executing step 3. Thus\nWen raised patch[1]. When flag NL80211_REGDOM_SET_BY_DRIVER is set,\ncfg80211 will notify ath11k after step 2 is done.\n\nSo enable the flag NL80211_REGDOM_SET_BY_DRIVER then cfg80211 will\nnotify ath11k after step 2 is done. At this time, there will be no\nKASAN bug during the execution of the step 3.\n\n[1] https://patchwork.kernel.org/project/linux-wireless/patch/20230201065313.27203-1-quic_wgong@quicinc.com/\n\nTested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-09T17:05:55.103Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/26618c039b78a76c373d4e02c5fbd52e3a73aead"
        },
        {
          "url": "https://git.kernel.org/stable/c/f952fb83c9c6f908d27500764c4aee1df04b9d3f"
        },
        {
          "url": "https://git.kernel.org/stable/c/933ab187e679e6fbdeea1835ae39efcc59c022d2"
        }
      ],
      "title": "wifi: ath11k: update channel list in reg notifier instead reg worker",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-23133",
    "datePublished": "2025-04-16T14:13:14.485Z",
    "dateReserved": "2025-01-11T14:28:41.511Z",
    "dateUpdated": "2025-09-09T17:05:55.103Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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